Amerika Birle\u015fik Devletleri'nde DBB'yi tan\u0131mlayan iki kurulu\u015f vard\u0131r: API ve OSHA. API'ye g\u00f6re, bir DBB valfi "kapal\u0131 konumda, oturma y\u00fczeyleri aras\u0131ndaki bo\u015flu\u011fu havaland\u0131rmak\/havas\u0131n\u0131 almak i\u00e7in bir ara\u00e7la, valfin her iki ucundan gelen bas\u0131nca kar\u015f\u0131 bir s\u0131zd\u0131rmazl\u0131k sa\u011flayan, iki oturma y\u00fczeyine sahip tek bir valftir." API ayr\u0131ca bu tan\u0131mda bu vanan\u0131n yaln\u0131zca bir taraf bas\u0131n\u00e7 alt\u0131nda oldu\u011funda pozitif \u00e7ift izolasyon sa\u011flamad\u0131\u011f\u0131n\u0131 da belirtmektedir.<\/p>\n\n\n\n
Buna kar\u015f\u0131l\u0131k, OSHA, DBB'yi "iki hat i\u00e7i vanay\u0131 kapat\u0131p kilitleyerek veya etiketleyerek ve iki kapal\u0131 vana aras\u0131ndaki hatta bir tahliye veya havaland\u0131rma vanas\u0131n\u0131 a\u00e7\u0131p kilitleyerek veya etiketleyerek bir hatt\u0131n, kanal\u0131n veya borunun kapat\u0131lmas\u0131" olarak tan\u0131ml\u0131yor.<\/p>\n\n\n\n
API'nin DBB tan\u0131m\u0131, OSHA'n\u0131nkiyle ayn\u0131 d\u00fczeyde izolasyona ula\u015famaz. API, DBB valflerinin iki tek y\u00f6nl\u00fc yuvaya sahip tek bir valf olmas\u0131na izin verirken, OSHA standard\u0131 yaln\u0131zca aradaki bas\u0131nc\u0131 bo\u015faltma y\u00f6ntemine sahip iki ayr\u0131 valf ile elde edilebilir. \u00c7ift valf tasar\u0131m\u0131n\u0131 kullanan baz\u0131 valfler vard\u0131r. \u0130ki valfi tek bir g\u00f6vdede birle\u015ftiren ikiz valf tasar\u0131m\u0131, OSHA'n\u0131n \u00e7ift blok ve bo\u015faltma gereksinimlerini kar\u015f\u0131larken a\u011f\u0131rl\u0131\u011f\u0131 ve potansiyel s\u0131z\u0131nt\u0131 yollar\u0131n\u0131 azalt\u0131r.<\/p>\n\n\n\n
Valve dernekleri genellikle API'nin veya OSHA'n\u0131n tan\u0131m\u0131n\u0131 izlemeyi tercih eder, ancak baz\u0131lar\u0131 end\u00fcstri terimleri i\u00e7in kendi tan\u0131mlar\u0131n\u0131 i\u00e7eren kendi el kitaplar\u0131n\u0131 olu\u015fturmu\u015ftur. \u00d6rne\u011fin, \u0130ngiliz Vana ve Akt\u00fcat\u00f6r Birli\u011fi (BVAA) DBB'yi "bir veya daha fazla izolasyon vanas\u0131n\u0131, genellikle k\u00fcresel vanalar\u0131 ve bir veya daha fazla bo\u015faltma\/havaland\u0131rmay\u0131, genellikle i\u011fne tarz\u0131 k\u00fcresel vanay\u0131 tek bir d\u00fczenekte birle\u015ftiren bir manifold" olarak tan\u0131ml\u0131yor. di\u011fer bile\u015fenlerle aray\u00fcz (\u00f6rn. bas\u0131n\u00e7 \u00f6l\u00e7\u00fcm vericileri, bas\u0131n\u00e7 g\u00f6stergeleri ve anahtarlar).<\/p>\n\n\n\n
\u0130ki blok vana, yukar\u0131 ve a\u015fa\u011f\u0131 ak\u0131\u015flardan izolasyon sa\u011flar. Arka arkaya yerle\u015ftirilen blok vanalar olarak normalde bir dizi s\u00fcrg\u00fcl\u00fc, k\u00fcresel, i\u011fne veya k\u00fcresel vana kullan\u0131l\u0131r. \u0130ki bloklu vanalar\u0131n orta bo\u015flu\u011funda bo\u015faltma vanas\u0131 olarak bilinen \u00fc\u00e7\u00fcnc\u00fc bir vana konumland\u0131r\u0131l\u0131r.<\/p>\n\n\n\n
Ayn\u0131 \u00e7ift blok ve bo\u015faltma d\u00fczeni \u00fc\u00e7 ayr\u0131 valf kullan\u0131larak elde edilebilir. Ancak tek \u00fcniteli \u00e7ift blok ve tahliye vanas\u0131 b\u00fcy\u00fck miktarda alan, a\u011f\u0131rl\u0131k, kurulum s\u00fcresi ve maliyetten tasarruf sa\u011flar. Ayr\u0131ca, i\u015fletme ve bak\u0131m a\u00e7\u0131s\u0131ndan tek \u00fcniteli \u00e7ift blok ve tahliye vanalar\u0131 daha iyidir, \u00e7\u00fcnk\u00fc tek \u00fcnitede potansiyel s\u0131z\u0131nt\u0131 yollar\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde azal\u0131r. Bas\u0131n\u00e7 d\u00fc\u015f\u00fc\u015f\u00fc de en aza indirilir.<\/p>\n\n\n\n
DBB'leri stratejik olarak bir s\u00fcre\u00e7 sistemine dahil ederek sistem b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc art\u0131r\u0131r ve bak\u0131m s\u00fcrelerini azalt\u0131rs\u0131n\u0131z. DBB valfinin temel faydalar\u0131 \u015funlard\u0131r:<\/p>\n\n\n\n
Bir DBB valfinde genellikle iki adet tek y\u00f6nl\u00fc, kendinden tahliyeli yuva bulunur. Bu koltuklar bas\u0131nc\u0131 azaltmak i\u00e7in harici bir mekanizmaya ba\u011fl\u0131 de\u011fildir. Buna kar\u015f\u0131l\u0131k, bir DIB valf\u0131 bir veya iki \u00e7ift y\u00f6nl\u00fc yuvay\u0131 kullan\u0131r. Valf, valfin her iki ucundaki bas\u0131n\u00e7tan \u00e7ift izolasyon sa\u011flar ancak g\u00f6vde bo\u015flu\u011fu bas\u0131nc\u0131n\u0131 yuvalar\u0131n \u00f6tesine ta\u015f\u0131yamaz. DIB valfleri, bas\u0131n\u00e7 olu\u015fumunu azaltmak i\u00e7in harici bir tahliye sistemine ihtiya\u00e7 duyar.<\/p>\n\n\n\n
Her iki valf de y\u00fcksek bas\u0131n\u00e7 veya y\u00fcksek s\u0131cakl\u0131k ko\u015fullar\u0131nda bile hem yukar\u0131 hem de a\u015fa\u011f\u0131 y\u00f6nde izolasyon sa\u011flayabilir. Bir vanadan s\u0131z\u0131nt\u0131n\u0131n b\u00fcy\u00fck sonu\u00e7lara yol a\u00e7abilece\u011fi durumlarda izolasyon \u00f6nemlidir. S\u0131v\u0131 izole edildikten sonra bo\u015faltma mekanizmas\u0131, iki valf veya iki oturma y\u00fczeyi aras\u0131ndaki alan\u0131 bo\u015faltabilir. Bu, s\u0131z\u0131nt\u0131n\u0131n izlenebildi\u011fi bak\u0131m ve b\u00fct\u00fcnl\u00fck kontrol\u00fc durumlar\u0131 i\u00e7in \u00f6nemlidir.<\/p>\n\n\n\n
\u00d6zellikle g\u00fcvenli\u011fin giderek kritik hale geldi\u011fi uygulamalarda, "\u00e7ift blok ve bo\u015faltma" fonksiyonlu vanalar talep g\u00f6rmektedir. Bu gereklilik, her iki tarafta bilyeli yatakl\u0131 ve yayl\u0131 bilya yatakl\u0131 k\u00fcresel vanalar (\u00c7ift Blok) ve \u00f6l\u00fc bo\u015fluk olarak adland\u0131r\u0131lan alanda bir havaland\u0131rma veya bo\u015faltma ba\u011flant\u0131s\u0131 (Bo\u015faltma) ile kar\u015f\u0131lanabilir.<\/p>\n\n\n\n
End\u00fcstriyel \u015firketler i\u00e7in iklim hedeflerinin kar\u015f\u0131lanmas\u0131, CO2'nin izole edilmesi, ta\u015f\u0131nmas\u0131, g\u00fcvenli bir \u015fekilde depolanmas\u0131 veya daha ileri d\u00fczeyde i\u015flenmesi zorunlulu\u011fu bulunmaktad\u0131r.2<\/sub> \u00fcretilen gaz (karbondioksit gaz\u0131).<\/p>\n\n\n\n CO2 <\/sub>yakalama ve depolamaya Karbon Yakalama ve Depolama (CCS) ad\u0131 verilir ve kullan\u0131m\u0131na Karbon Yakalama ve Kullan\u0131m\u0131 (CCU) ad\u0131 verilir. Bu ama\u00e7la, porttaki \u00e7ift ve ba\u011f\u0131ms\u0131z kapatman\u0131n tan\u0131mlanm\u0131\u015f m\u00fcmk\u00fcn olan en k\u00fc\u00e7\u00fck bo\u015flu\u011funun bas\u0131nc\u0131n\u0131 tahliye etmek i\u00e7in kullan\u0131lan, tahliye olarak bir k\u00fcresel vanaya sahip DN32 nominal boyutlu Duoball k\u00fcresel vanalar.<\/p>\n\n\n\n Bu, optimize edilmi\u015f OPEX ve CAPEX sonucunda TCO'ya \u00f6nemli bir katk\u0131 sa\u011flar.<\/p>\n\n\n\n\n \u00d6ncesi ve sonras\u0131yla on makale<\/p>\n\n\n\n Yayl\u0131 kapatma \u00fcnitesi | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Onar\u0131m | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Yer tasarrufu sa\u011flayan kurulum | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Ger\u00e7ekle\u015ftirilmi\u015f ve ya\u015fanm\u0131\u015f s\u00fcrd\u00fcr\u00fclebilirlik | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n tert-Butilamin (tBA) | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Diol tesisi | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Polimer eriyi\u011fi | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Y\u00fcksek Bas\u0131n\u00e7l\u0131 K\u00fcresel Vanalar | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n Covid-19 G\u00fcncellemesi | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>\n\n\n\n INTEC \u00c7ift k\u00fcresel vana | API onayl\u0131 valf \u00fcreticisi<\/a><\/p>","protected":false},"excerpt":{"rendered":" DBB Vanas\u0131 Nedir? Amerika Birle\u015fik Devletleri'nde DBB'yi tan\u0131mlayan iki kurulu\u015f vard\u0131r: API ve OSHA. API'ye g\u00f6re bir DBB\u2026 Daha fazla bilgi edinin<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2142,3276,2141,3278,3277],"class_list":["post-15586","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-dbb-valve","tag-dbb-valves","tag-double-block-and-bleed-valve","tag-intec-duoball","tag-intec-duoball-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/tr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2142,"name":"DBB valve","slug":"dbb-valve","term_group":0,"term_taxonomy_id":2142,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"term_id":3276,"name":"dbb valves","slug":"dbb-valves","term_group":0,"term_taxonomy_id":3276,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2141,"name":"double block and bleed valve","slug":"double-block-and-bleed-valve","term_group":0,"term_taxonomy_id":2141,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":3278,"name":"intec duoball","slug":"intec-duoball","term_group":0,"term_taxonomy_id":3278,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":3277,"name":"INTEC Duoball Valve","slug":"intec-duoball-valve","term_group":0,"term_taxonomy_id":3277,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET INTEC DUOBALL VALVE PRICE<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\u0130lgili Etiketler :<\/h2>\n\n\n\n\n
INTEC Duoball Valve<\/h2>\r\n\r\n\r\n\r\n\r\nThe Duo ball valve, developed by KLINGER Sch\u00f6neberg, has a double shut-off of the pipeline and makes it possible to increase the safety of a system significantly. The Duo ball valve is available in the same length as a standard valve and provides a compact and economical alternative to several valves.\r\n\r\n\r\n\r\n\r\n\r\nThe Duo Ball Valve (DBV) is designed for applications with extremely high safety requirements. The DBV consists of two ball valves, which are equipped on request with two independent barriers. Therefore, the safety factor could be increased 4 times compared to a standard ball valve. Due to the double isolation and bleed function each ball valve is tight on both the upstream and downstream sides.\r\n\r\n\r\n\r\n\r\n
Features of INTEC Duoball Valve<\/h2>\r\n\r\n\r\n\r\n
\r\n \t
\r\n \t
\r\n \t
\r\n \t
\r\n \t
\r\n \t
\r\n \t
\r\n \t
\r\n \t
\r\n \t
What is DBB Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nA double block and bleed valve are like having three valves in one.\r\n\r\n\r\n\r\n\r\n\r\nAPI 6D defines a double block and bleed valve as a \"single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of venting\/bleeding the cavity between the seating surfaces.\"\r\n\r\n\r\n\r\n\r\n\r\nThere are a couple of different styles of double block and bleed valves. One style has two independently seating valves inside, with a bleed or drains valve. This configuration is referred to as a double isolation and bleed (DIB). The DIB valve can isolate either side of the valve (bi-directionally) to vent or bleed the cavity and isolate piping.\r\n\r\n\r\n\r\n\r\n\r\nThis trunnion style ball valve from ZECO provides a double block and bleed in a single valve. This style can isolate piping on both sides of the valve (uni-directionally) to vent\/bleed the valve cavity between the seats.\r\n\r\n\r\n\r\n\r\n\r\nUsing a single double block and bleed valve system versus 3 separate valves saves installation time, weight on the piping system, and space. It also cuts down the number of leak paths to the atmosphere, reducing the risk of hazards when transferring liquids dangerous to humans or the environment.\r\n\r\n\r\n\r\n\r\n
Features and Benefits of DBB Valve<\/h2>\r\n\r\n\r\n\r\n\r\nDouble Block and Bleed valves have been developed to substitute the process of bolting the individual valves together to provide dual insulation.\r\n\r\n\r\n\r\n\r\n\r\nThis new model provides excellent savings in weight, space, and installation time, particularly for insulation in the instrument or instrument cage. These weight savings will amount to up to 60% and tests have shown that a time savings of 70% on installation is also possible. The biggest benefits must be seen, however, in reducing the leakage pathways into the environment, thus reducing the possibility of possible dangers.\r\n\r\n\r\n\r\n\r\n\r\nDual isolation is an essential requirement when maintenance is performed downstream of the first isolation valve. Cavity venting is given by either a ball or a globe vent valve such that the compressed pressure between the two isolation valves is vented safely.\r\n\r\n\r\n\r\n\r\n\r\nThese valves have also grown to incorporate the role of chemical injection and sampling points. In-built control valves are also incorporated into these valves.\r\n\r\n","parent":0,"count":4,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2142,"label":"DBB valve"},{"value":3276,"label":"dbb valves"},{"value":2141,"label":"double block and bleed valve"},{"value":3278,"label":"intec duoball"},{"value":3277,"label":"INTEC Duoball Valve"}]},"yoast_head":"\n